Prompt 1: "I'd say for my request, one were Sakura summons Archer and is kept by the Tohsaka's instead of Rin, but she still has that special relationship to Shirou" — Musashi is Bae
Prompt 2: "My request : Rin summoning jalter. And Rin starts to enjoy seeing blood spilled. she goes down the dark (route) path" — Pandy (tfw)
(For this one, I will be combining tfw and Musashi is Bae's request into one work.)
Hatred burned deep in her gut, a fire that was outmatched only by the flames her Servant could conjure. She had burnt away Berserker, turned that golden Archer into ash, and removed any other obstacle in the war.
Now it was just her, Emiya, and the black-haired bitch.
Avenger huffed beside her, idly spinning her banner in hand.
"You don't have to do this... nee-san." The black-haired girl said, holding up her hands. "Senpai and I don't need the grail. We just want to be left alone. He's not even in the war anymore."
"Too late for that," Rin growled. "Avenger?"
"With pleasure," she said, pulling her sword from her sheath. Archer quickly materialized, his two blades drawn and ready.
"Sakura..." Emiya, that blind ass, only had eyes for his kohai. He never looked at her. Never had. She could have bared herself naked before him and he would still be looking for the other girl.
Bastard.
"Oi, weirdo," Avenger said. "Make this fun for me, will you?"
"You don't know what you're doing," Archer replied. "The Grail is not what you think it is. It's—"
"Don't care." Avenger drew a line in the air and Archer had to dodge back to avoid an array of stakes that made to stab him. "All that matters is seeing you three dead."
"Nee-san..." The black-haired bitch was tearing up. "Why...?"
Rin tilted her head.
"Don't you remember what Father taught us?"
She felt an easy smirk split her face.
"Traitors never get mercy."